A group of militants raided two police stations in Baghdad on Friday, killing 12 policemen and wounding several others, police said.
Militants attacked al-Amil police station in southern Baghdad with mortar rounds, killing 12 policemen in fierce clashes inside the station.
The attackers then looted weaponry.
Shortly, government security forces cordoned off the area.
In a separate attack, gunmen clashed with policemen at a station in Baghdad's northern district of al-Adhaniya, the police said, without giving further details on casualties.